MemoryStream Constructor (Int32)

MemoryStream Constructor (Int32)


Initializes a new instance of the MemoryStream class with an expandable capacity initialized as specified.

Namespace:   System.IO
Assembly:  mscorlib (in mscorlib.dll)

public MemoryStream(
	int capacity


Type: System.Int32

The initial size of the internal array in bytes.

Exception Condition

capacity is negative.

The CanRead, CanSeek, and CanWrite properties are all set to true.

The capacity automatically increases when you use the SetLength method to set the length to a value larger than the capacity of the current stream. Except for a MemoryStream constructed with a byte[] parameter, write operations at the end of a MemoryStream expand the MemoryStream.

This constructor exposes the underlying stream that GetBuffer returns.

This code example is part of a larger example provided for the MemoryStream class.

using(MemoryStream memStream = new MemoryStream(100))

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Return to top
© 2015 Microsoft